SYNTHÈSE DE (+)- ET (-)-1-(5,5-DIPHÉNYLTÉTRAHYDROFURAN-3-YL)-N,N-DIMÉTHYLMÉTHANAMINE, DE (+)- ET (-)-1-(2,2-DIPHÉNYLTÉTRAHYDROFURAN-3-YL)-N,N-DIMÉTHYLMÉTHANAMINE ET DE (+)- ET (-)-1-(2,2-DIPHÉNYLTÉTRAHYDROFURAN-3-YL)-N-MÉTHYLMÉTHANAMINE

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专利权人:

ANAVEX LIFE SCIENCES CORP.;SCHMITT, Martine;MOUTSOS, Vassilios;WAMVAKIDES, Alexandre

发明人:

WAMVAKIDES, Alexandre,MOUTSOS, Vassilios,SCHMITT, Martine

申请号：

GRGR2012/000030

公开号：

WO2013/008044A1

申请日:

2012.07.05

申请国别(地区):

GR

年份:

2013

代理人:

摘要：

The current invention covers the synthesis of (+) and (-) l-(5,5-diphenyItetrahydrofuran-3- yl)-N,N-dimethylmethanamine [(±)1] and [(-)1] respectively, including their pharmacologically acceptable acid addition salts. The new products can be synthesized starting from 5,5-diphenyltetrahydrofuran-2(3H)-one (4) after insertion of an aldehyde group in the α-position, reduction to the prochiral 3-(hydroxymethyl)-1, 1-diphenylbutane-1,4-diol (6), chemoenzymatic desymmetrization using the enzyme Amano Lipase PS30, tosylation, intramolecular nucleophilic attack, hydrolysis, reaction with trifluoromethanesulfonic anhydride and substitution by dimethylamine, thus producing (+) 1-(5,5-diphenyl- tetrahydrofuran-3-yl)-N,N-dimethylmethanamine [(+)1]. Protection of the product of the chemoenzymatic desymmetrization with tert-butyldimethylsilyl chloride, hydrolysis, tosylation, intramolecular nucleophilic attack, removal of tert-butyldimethylsilyl group, reaction with trifluoromethanesulfonic anhydride and substitution by dimethylamine produces (-) 1-(5,5-diphenyltetrahydrofuran-3-yl)-N,N-dimethylmethanamine [(-)1]. It also covers the synthesis of (+) and (-) 1-(2,2-diphenyltetrahydrofuran-3-yl)-N,N- dimethylmethanamine [(+)2] and [(-)2] respectively and (+) and (-) 1-(2,2-diphenyl- tetrahydrofuran-3-yl)-N-methylmethanamine (+)3] and [(-)3] respectively, including their pharmacologically acceptable acid addition salts. The new products can be synthesized either starting from the reduction of 5-oxo-2,2-diphenyltetrahydrofuran-3-carboxylic acid (13) with LiA1H4, followed by the cyclization of the obtained triol (14) under acidic conditions, reaction with 1S-(-) or1R-(+)camphanic chloride, recrystallization, hydrolysis, reaction with trifluoromethanesulfonic anhydride and substitution by dimethylamine or methylamine, or by the reaction of R-(-) or S-(+) Mandelic acid and acetic acid with racemic 1-(2,2-diphenyltetrahydrofuran-3-yl)-N,N-dimethylmethanamine (2), recrystallization, foll

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